Cisco Wireless :: Correct Channel Management Within AP541N Cluster
Jun 6, 2011
I have a cluster of 5 AP541Ns. I accidentally started the auto update of IP addresses based on reduction of interference, and it changed the wireless channels on all of the APs. I disabled it, but he channel settings did not change.Now if I remember correctly, before making this setting, they were all on the same channel, 6. Should they all be on the same channel? If so what setting or procedur do I have to do to get them all back on the same channel? (do I have to manually set the channel?)
We have 3 AP541N units deployed in a doctors office. All of them are set to 802.11b/g/n mode. 2 of these units are used to provide non-secured internet access to patients and are using channel 7. The other AP is for our private network secured using WPA2/AES operating on channel 1. There are several other access points in our proximity using channel 6 and I'm trying to minimize interference.When selecting wireless mode 802.11 b/g/n I have only channels 1-7 to choose from. What I really want to do is change our public wlan to use channel 11 to avoid the other business's AP which are using channel 6.
Should I be using a different mode altogether? In your expereince which mode will provide the best transmission rates and range?
I set this to "Enabled", the problem is I only entered 1 IP address, and that IP address is the SAME IP as the AP's own internal interface. I was not thinking and entered that IP out of habit when I meant to enter my workstation's IP. The FW does not have a safeguard against this.
So, as you can see, this is a big problem, because now I have completely cut off all access (That I can think of) to the router. I can never access the AP as that IP because if I set my workstation to that IP, 1) There will be an address conflict, 2) My computer won't route traffic to the AP out its NIC because it recognizes that IP as itself.
we have two AP541n APs that were clustered togehter. They are powered using PoE. The other day I discovered one of them wasn't working properly. I couldn't log into it from the web interface so I unplugged it and plugged it back in from the PoE switch. That didn't work. Since then I have taken it off the network and have tried to reset it and I still can't access it. I've tried connecting to it from the default IP, which according to the admin guide is 192.168.10.10, and that doesn't work. I have tried using Telnet and SSH to connect to it using the default IP and the static IP we had set for it. I have set up a little linksys router and plugged the AP and a laptop into it in hopes it might get DHCP, but that hasn't worked either. I have also noticed the WLAN 2.4G and WLAN 5G lights are not coming on. The PWR, SPEED, and LAN lights all come on. The DIAG light comes on when it's furst plugged in and then turns off. Right now it is not plugged into PoE so that light is off too. We had both APs plugged into an ESW-520 that was plugged into a UC560 which had recently been updated to the latest firmware: 8.6.1. The short story is I don't have any connectivity to my AP541n, even after being reset. No wireless, no Web GUI, no ping, nothing. Has this thing become a large paperweight?
I currently have two 541N access-points slightly overlapping eaching other and my clients appear to connect to the further AP most often. They are setup in a cluster, but that appears to just provide configuration synchronization. Short of purchasing a wireless controller which would appear to be overkill, is there any way to manage client connections between the two AP's?
Is there any management software available to manage 5 or so AP541N running across a WAN. Eg we have a couple of VAP's setup on each access point 1 for staff and 1 for guests. I would like to be able to change all the WPA Personal guest access password centrally rather than having to log onto each box and edit it manually.
I have a client with an AP541n, most recent firmware installed. When he logs into the management interface (via IP using Google Chrome browser), it will work for a few minutes and then just disappear. If he attempts to reload the page he gets a message similar to a website being down (page cannot be displayed). The idle timeout has been extended to 4 hours, but this can happen at any point while logged into the interface.
I have a misanderstand about management interface configuration in cluster. So I have a cluster asa 5515X with management interface. i Would like to be able to connect to any of the member of my cluster on management interface, so i would like to fix a different ip on management interface on each of my node ip 92 and 91. I think it is the only way to make asa firmware update to access local flash on each node.
my config
interface GigabitEthernet0/1 channel-group 1 mode active no nameif
My company has a lot of thier business relying on the wireless network and I am trying to reduce the single points of failulre in my network infrastructure. We have a single Cisco 2112 controller with 10 AP's that I am wondering if it's possible to cluster this with another controller for redundancy purposes?
I have one AP541N and need to extend the wireless network with a second wireless AP. Which models of AP can I use with the AP541N to achieve a 'cluster', please? Is it just with a second AP541N or can I use other Cisco APs to achieve the cluster?
Am I correct in thinking that doing this will allow wireless clients to 'roam' seamlessly between the two APs?
I just installed a brand new AP541N-A-K9 (running AP541N-K9-2.0(1) software) and cannot seem to add a SSID. I've tried both from CCA and directly from the Web interface (Wireless:Wireless Network Setup menu). The Add Another button doesn't seem to do anything. I've even tried multiple browser versions.
I have 3 AP541N. I become this not in a cluster. The APs standalone in the room. The first AP connect with cable to a DHCP Router from a other manufacturer. The other both APs should be connect over WLAN.How I must configure the APs? Which parameters must install?
I've recently started having some odd issues with one of my computers connecting to the internet on my linksys wireless-n router from my pc. When I enter in the security settings correctly for the network I have setup here at home, it says "The wireless network security key is not correct."But I know it is, and I have confirmed on my laptop (which is using the correct settings and is having no issues at all, it's what I'm posting this with) the settings are correct. It has the correct 'Security type (wpa2-personal)', encryption type (aes), and network security key. I have restarted the pc computer and reset the router from factory settings many times, all to no avail. I've used several different linksys wireless adapters and usb slots, and it keeps on with the same issue. Kind of odd thing is, when I change the security type on my computer settings to wpa personal from wpa2 personal, and encryption type to tkip from aes, and enter the passcode correctly, it will connect to the network but with no internet access, local only. I've also connected to the wireless routers setup page (192.168.1.1.) from the laptop and confirmed settings. When I am able to connect from the pc when I change the settings and it gives me local access, I am still unable to the routers setup (192.168.1.1), so I dont know if I'm actually even connected locally when it says I am.Also, the signal strength from the network is Excellent (full bars).When I ipconfig /all ,media state is disconnected When I ping 192.168.1.1 , destination host unreachable, but received all packets with 0% loss.
I have 2 AP541N access points. Have been working well for a couple of years. Later last year they just dissapeard from CCA one day. COundt access them but they were still delivering 'wireless' so to speak I have recently put them back to defaults to try and get them back in to CCA. i had one, but not the other. They would work fine via GUI/web access.Then i updated them to 2.0.4 (both images) and since doing that i have no access to either of them via any form.
As I posted about in the other AP541N thread about degraded performance, mine did a strange client disconnect last week. It dropped all authenticated clients, but they all thought they were still connected. A quick disable/enable of the wireless card on the laptop would get the computer back on the AP.
This same thing happened again today.
Device information and configuration: Device: AP541N H/W: V01
I purchased quite a few of these APs as they listed the ability to function in WPA2-PSK mode, but on initial configuration I see that this may only apply to standard AP mode? Is there any way to configure WPA2-PSK on an AP541 to AP541 bridge? Unfortunately, this is a must have for our client. If not, what would allow for this with an external antenna port?
I have configured two AP541N in a cluster, but only VAP0, is listed as clustered. None of the VAPs seems to be clustered. What can I configure to get all SSIDs clustered?Product Identifier:AP541N-E-K9Hardware Version:V01Software Version:AP541N-K9-2.0(4)
I have 2 AP541N's set up using a WDS bridge, broadcasting a single SSID. I am using WPA-PSK for the bridge and WPA/ WPA2 and CCMP (AES) on the SSID. I only have around 75 (Mac, PC, iPad, iPhone and Android) devices that use wireless. Some are laptops that roam around from AP to AP, and are using LAN when they are not roaming. I have increased the roaming agressiveness on PC clients and this doesn't seem to have resolved the weak connection. At most, I have 50 clients trying to access the wireless at one time. My problem is that they keep on dropping the connections and have real problems reconnecting once it's dropped. After 4 or 5 tries, they may or not be able to reconnect.
when moving throughout our building my laptop will not switch between AP’s unless it loses its connection with its existing AP then it will see the other AP that is closer and connect to it.
For example, I start at one end of the building where it connects to AP#1 at 270Mbps, if I then slowly go to another section of the building, the speed will drop all the way down to 24Mbps, but it will not switch over to AP#2 unless I turn off AP#1 then the laptop instantly switches to AP#2 at 160Mbps. Again the same behavior if I start walking back the other direction. The laptop will not disconnect from AP#2 until the signal is lost.
With my 2.4GHz wireless 802.11g AP’s (WAP200) I can roam around the building and the laptop will happily jump between AP’s always staying with the faster of the two available.
Settings are all pretty basic.
Mode is set to 5GHz 802.11n Channel is set to AutoA single SSID is running WPA Personal using wpa2, CCMP (AES)Channel is set to AutoChannel Bandwidth is set to 40MHzClustering is enabled and the AP’s see each other just fine.
We are considering order the AP541N for our network. A few questions...
1). Are there multiple models of the AP541N? or just one cisco part number?
2). I am assuming the basic antenna comes with it. If this is something that I need to buy seperate.
3). Are there part numbers for the POE injector? Need to know part numbers on the AP541N and the poe injectors?
4). We would buy a couple of these and run them in cluster mode. My understanding is that I won't need a controller. Do I need to buy a certain model to use the clustering or is that available on all the AP541N?
5). Can I have this talk to active directory to authenticate users? Is that tough to do? Do I need install some kind of agent on a domain controller? I have configured the ASA to use Active Directory for authentications. Should it be any more difficult that that?
I have setup a few other Cisco APs before and am generally familair with wireless. But, I am not a "wireless expert" and don't have any experience with this particular product.
I recently attempted to update my access points Software from AP541N-K9_1.8(0) to AP541N-K9_1.9(2). As soon as the update and reboot were complete I could no longer connect to the wireless network using my iphone. I switched back to the secondary 1.8 software and could immediately reconnect my iphone to the network. Upgrading to 1.9(2) changes a setting or is flawed.
I was looking for some clarification on the capabilities of these devices to allow roaming of clients between AP's. Take a basic scenario of 3 AP's and a single SSID. I know the AP541N has clustering which uses the Fast Client Roaming Protocol, which basically does a quick re-connect to the new AP. Not quite as seamless as using aironet and a controller, but still pretty good.
Question 1 How does the WAP321 handle roaming? Obviously without the clustering feature you would have to configure each AP independently. But after setting them up, would it support roaming in a similiar way to the AP541N??
Question 2 Would running three standalone Aironet 1141's operate any differently in terms of roaming?
In summary I like the roaming capability of the AP541N but hate the large clunky form factor. I need something that can be mounted in an office environment (ceilings) that will handle easy client roaming. A short disconnect isn't a concern as long as it reconnects on it's own. Wireless controllers are a little out of the price range for this setup.
i have a 541N running the latest firmware 2.0.2.It has 3 SSIDs for the 3 vlans that it has.I have configured b/g/n.The power is fullIt is powered via POE.The end customer tells me that the range it covers is very very small!Comparing to traditional low budget APs the power is very very low.It does not cover 30-40m in free space where other APs do.Do i need to configure something more in the radio settings?
trying to get my new router and bridge to work I am close to give up.
1. I have bought a RV220W router this will be connected to Internett and all wireless devices will connect to it. It seems to work fine. I have enabled on AP profile where others easyli can access internett through router WAN port
2. I have bought a AP541 Access point that i want to have as a bridge (We earlier used 3COM without problems) Some Computers and other stuff like printers will be connected to this through a switch for the Ethernet port on AP541. (I dont want any clients to connect wireless to AP541N)
Before I start asking detailed questions, i want to verify that my setup is possible. Reading the Information on the shops webpage clearly states that AP541N can work in bridge mode, but struggling to find any good explenation makes me wonder if this really is true.
Can Cisco AP541N works as a bridge together with RV220W.
I have an SA520W firewall, and am implementing a new AP541N. On the SA I am using port 4 to connect the AP. Trunking is on with Vlan 1 and 25. Connecting the AP I am able to use VLAN1, however when I assign a new VAP using Vlan 25, I only receive IP addresses for VLAN1.
I have an AP541N-N-K9 Dual Band Access Point which I'm having some issues with. We have a few users with Android and iOS devices and they want to connect to our corporate network but when we configure the wireless network details in both OSs none of the devices get an IP address. We have an MS AD/DNS/DHCP infrastructure. On looking at the logs of the access point I can see the devices successfully authnticating but then I see the connection being disassociated and deauthed. A few seconds later the device attempts to get an IP address again and the same thing happens again. This loop just keeps on going forever. If we connect to the AP with an MS OS everything is fine. [code]
I have 3 AP541Ns setup in a small environment. The wireless clients use laptops to attach, via RDP, to a Microsoft Terminal Server. They need the ability to walk, with laptop, from room to room, IE roaming wireless clients. The issue is the clients drop and re-attach constantly and takes up to 5 minutes to re-attach to the WLAN / RDP session. Is this a symptom of going from WAP to WAP and is their anything I can do about it.
AP541N wireless AP, what POE injector are you supposed to use?The web site states any enterprise class af POE injector will do, but the AP1131 POE injector does not work with the AP541N.
I have a Cisco AP541N and have been attempting to configure it. I assigned a Static IP with the Subnet, default gateway and DNS info. Everything seemed to be working fine yesterday when it was deployed. Today, there appears to be no internet access. We are able to connect but have limited access.
